Computer unable to boot, works after leaving it off for a few hours

Alvin_8

Commendable
Mar 4, 2016
5
0
1,510
Hi, I'm new here so pls forgive me if this is not under the right section thaanks.
Problem: recently I moved house and brought my desktop pc along. (Don't know if this is relevant). It was working fine for a while at my new place, but after some time, my pc couldn't be switched on (fans weren't spinning, there was no sign of power). However after I left it without power for a few hours it would be able to be turned on again, returning me to wherever I left off. This has become very frustrating for me since it means I could not turn my pc back on after switching it off. I suspect it's a problem with the motherboard but I'm not too sure.
P.s. I'm still a student so I really really need my computer alive and well. I know my description of the problem is somewhat ambiguous but I don't know what else to add.
Any help is much appreciated
Thanks a lot!!!
 

Alvin_8

Commendable
Mar 4, 2016
5
0
1,510


Asus Z97-PRO‏(Wi-Fi ac)
seasonic ssr 750rm active pfc f3
Seagate DB35.3 160GB
UDMA/100 7200RPM 2MB IDE Hard Drive
Intel® Core™ i5-6600T Processor (6M Cache, up to 3.50 GHz)
g.skill ripjaws x f3-2400c11d-16gxm
 

skippyboy92362

Distinguished
Jul 31, 2009
145
2
18,815
Ok it's one of Four things. A loose connection, CPU with the heat sink needs reseated, power supply is faulty or I'm afraid your motherboards onboard graphics is gone. First I would check all your connections to the motherboard by unhooking them and hooking them back up with the power off, the power supply unplugged and the power discharged from it. (Push the power button in for 10 seconds after your PC is off and unplugged.) Since your will have your case opened pull the heat sink off, clean old paste off the CPU and heat sink, carefully remove your CPU from the motherboard, and check the board for bent pins in the CPU socket. Put the CPU back in, reapply thermal paste, and remount heat sink. Plug it back in turn it on and let us know what happened. Also after doing some research on your Seasonic power supply this model has the above mentioned issue your describing with Z97 boards so I'm thinking that is the culprit. I'm just covering all the bases before we go with a bad motherboard which I doubt it is. Do you have a friend that may have a spare power supply to see if his fires your board up right away? If so try it and see what happens.
 

Alvin_8

Commendable
Mar 4, 2016
5
0
1,510
Update: the cpu is properly seated and there seems to be no problem with any connections. I only managed to get it to turn on once afterwards, so now it's completely dead. At this point of time I strongly suspect it's the power supply, but I don't know how to test for it, nor do I have a spare power supply so...